Sign Holder Adaptor for Delineators; Sign Holder Adaptor for Delineators is necessary to mount Barrier Type Sign Holder For Delineators 150×75 cm  or Barrier Type Sign Holder For Delineators  between two delineators like  Delineator Post with Reflector 11 x 120 cm or Delineator Post with Reflective Collar 11 x 120 cm